Using the VC120 Video Conferencing System97shown in big sizes, and other video images are shown in small sizes.When more than two conference members are authorized, the authorized videoimages are shown in same sizes.All the other members are muted and the mute icon appears on their videoimages.- Press (Speaker Only soft key) to authorize the selected members to speak.All the other members are muted. The organizer’s display device only displays theauthorized video images.- Press (Cancel soft key) to cancel.